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Explain group By clause in SQL? Group By clause in SQL: The GROUP BY clause can be used in a SELECT statement to collect data across multiple records and group the results thro
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
The result of the UNION operation between R1 and R2 is a relation that includes? The result of the operation between R1 and R2 includes all the tuples of R1 and R2 which have c
Define object-relational systems? Systems that give object-oriented extensions to relational systems are known as object-relational systems.
Using your cache simulator and using smalltex.din as your memory trace determine the total miss rate, compulsory miss rate, capacity miss rate, and conflict miss rate for the follo
Why containment is important in oosystems? Containment is an significant concept in oosystems because it allows dissimilar users to view data at different granularities.
Which is another name for weak entity? Child is another name of weak entity.
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
What are the DBMS languages? Explain. Ans: a) Data Definition Languages (DDL): It is employed to specify database schema for example CREATE DROP statements etc. b) Dat
What are the advantages of creating a table from existing table?
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